Patent US 3507593A
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| Patent number | US 3507593A (click link for details and documents via Google Patents) |
|---|---|
| Title | Contact negative with method and apparatus employing the same |
| Inventors | Gerald E. McTeague |
| Company | Tektronix Inc |
| Filing date | 1967-05-08 |
| Grant date | 1970-04-21 |